Customs agents have a device where you put a substance on a small metal plate and it tells you exactly what it is (like cocaine etc). How does this work and how accurate is it? Submitted by Weird-Vagina-Beard t3_ycilmw on October 24, 2022 at 6:23 PM in askscience 14 comments 14
[deleted] t1_itu6q9o wrote on October 26, 2022 at 10:24 AM Reply to comment by Problem119V-0800 in Customs agents have a device where you put a substance on a small metal plate and it tells you exactly what it is (like cocaine etc). How does this work and how accurate is it? by Weird-Vagina-Beard [removed] Permalink Parent 1
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